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{{/_source.additionalInfo}}SOB Medium
Cat#: GCM11.0500
Description
SOB Medium is a dehydrated powder for the preparation of nutritionally rich liquid medium for the preparation and transformation of E. coli. Transformation requires perforation of bacteria to allow DNA to enter the cell. To survive this process, competent cells need isotonic rich media. SOB Medium is well suited for this role.
SOB contains all the nutritional requirements for E. coli. Tryptone and Yeast Extract are the sources for carbon, nitrogen, vitamins, minerals, and amino acids essential for growth. Sodium chloride and Potassium chloride supply essential electrolytes for transport and osmotic balance, while Magnesium sulfate serves as a source for magnesium ions.
Formulation (g/L)
- Tryptone: 20.00
- Yeast Extract: 5.00
- NaCl: 0.50
- MgSO4: 0.96
- KCl: 0.186
- Final pH (25°C): 7.0 ± 0.2
Preparation
Add 26.6g of the dehydrated medium to one liter of distilled water. Mix well and dissolve by heating with regular agitation. Boil for 1 minute in order to dissolve completely. Dispense in appropriate containers and sterilize by autoclaving at 121°C for 15 to 20 minutes. Store at 2-8°C.
- Optimized for the preparation and transformation of competent cells
- Isotonic rich medium
- Contains all the nutritional requirements for E. coli
- SOB Medium, 500g
Boca Scientific is your premiere source for high-quality, innovative solutions for Cell Biology, Molecular Biology, Immunology, genetics and other lab products and reagents. We bring leading-edge products from our own-line and around the world to laboratories in the US and Canada. Our goal is to offer excellent solutions to drive research and discoveries backed by superior customer support.
